Robot system

Abstract

A robot system is provided, which includes a paint booth, and a pretreatment robot configured to perform painting pretreatment on a workpiece that is an object to be painted, the pretreatment robot being an explosion-proof robot disposed in the paint booth and including an end effector used for the painting pretreatment.

The invention claimed is: 
     
       1. A robot system comprising:
 a paint booth; 
 a pretreatment robot configured to perform painting pretreatment on a workpiece that is an object to be painted, the pretreatment robot having one or more arms; and, 
 a hose connected to an end effector, 
 wherein the pretreatment robot is an explosion-proof robot disposed in the paint booth and including the end effector used for the painting pretreatment, and the hose is disposed entirely outside of the one or more arms of the pretreatment robot. 
 
     
     
       2. The robot system according to  claim 1 , wherein:
 a plurality of the pretreatment robots are each disposed sandwiching the workpiece in a transport direction of the workpiece, with axial configurations being mutually symmetrical with respect to a transport center plane in the transport direction. 
 
     
     
       3. The robot system according to  claim 2 , wherein:
 the one or more arms of the pretreatment robot includes: 
 a first arm configured to rotate about a first axis; 
 a second arm configured to pivot about a second axis perpendicular to the first axis; and, 
 the first arm and the second arm are each disposed such that, in a reference posture of the first arm, the second arm is disposed at a position closer to the workpiece than the first axis. 
 
     
     
       4. The robot system according to  claim 3 , wherein:
 the paint booth includes side walls each disposed sandwiching the workpiece in the transport direction; and, 
 a plurality of the pretreatment robots are wall-mounted on the side walls, respectively. 
 
     
     
       5. The robot system according to  claim 3 , wherein:
 a plurality of the pretreatment robots are each disposed such that the first axis is oriented in the transport direction. 
 
     
     
       6. The robot system according to  claim 3 , wherein:
 the end effector performs a dust removal process and a neutralization process as the painting pretreatment. 
 
     
     
       7. The robot system according to  claim 6 , wherein:
 the hose is for the dust removal process; and 
 the hose is routed on the workpiece side, outside of the second arm. 
 
     
     
       8. The robot system according to  claim 2 , wherein:
 a plurality of the pretreatment robots are disposed at positions offset in the transport direction, respectively. 
 
     
     
       9. The robot system according to  claim 4 , wherein:
 a plurality of the pretreatment robots are each disposed such that the first axis is oriented in the transport direction. 
 
     
     
       10. The robot system according to  claim 4 , wherein:
 the end effector performs a dust removal process and a neutralization process as the painting pretreatment. 
 
     
     
       11. The robot system according to  claim 5 , wherein:
 the end effector performs a dust removal process and a neutralization process as the painting pretreatment. 
 
     
     
       12. The robot system according to  claim 9 , wherein:
 the end effector performs a dust removal process and a neutralization process as the painting pretreatment.